Here is a graph of the function f. Use the graph to find the following.
If there is more than one answer, separate them with commas.
(a) All local maximum values of you
(b) All values at which phas a local maximum:
.

Look, when you want to do something like put it like x^2. x2 could mean x² or x₂. so to clear confusion, know the notation. to find the product multiply the x's and you get -8x and the y's and you get 6y. since it's all being multiplied it is just -8x6y, or answer a. although the better answer is -48xy(combining -8 and 6) because you should multiply constants whenever you can.